Acronym  oho 
TOCID symbol  OC, aTT 
Name 
octahemioctahedron, allelotetratetrahedron 
© ©  
Circumradius  1 
Vertex figure  [3/2,6,3,6]/0 
Snub derivation 

Coordinates  (1/sqrt(2), 1/sqrt(2), 0) & all permutations, all changes of sign 
General of army  co 
Colonel of regiment  co 
Dihedral angles 

Confer 

External links 
The octahemioctahedron is an edgefaceting of co, in fact it uses the triangles of it and all equatorial hexagons.
When introducing a further vertex at the center and making face intersections into true edges, oho would become an edge connected shape from 8 tetrahedra.
Incidence matrix according to Dynkin symbol
x3/2o3x3*a . . .  12  2 2  1 2 1 +++ x . .  2  12 *  1 1 0 . . x  2  * 12  1 0 1 +++ x3/2o .  3  3 0  4 * * x . x3*a  6  3 3  * 4 * . o3x  3  0 3  * * 4 snubbed forms: β3/2o3x3*a, x3/2o3β3*a, β3/2o3β3*a
(isotoxal) 12  4  2 2 ++ 2  24  1 1 ++ 3  3  8 * 6  6  * 4
β3o3x both( . . . )  12  2 2  1 1 2 +++ both( . . x )  2  12 *  0 1 1 sefa( β3o . )  2  * 12  1 0 1 +++ β3o . ♦ 3  0 3  4 * * both( . o3x )  3  3 0  * 4 * sefa( β3o3x )  6  3 3  * * 4 starting figure: x3o3x
β3/2x3x demi( . . . )  12  2 2  2 1 1 +++ both( . x . )  2  12 *  1 1 0 both( . . x )  2  * 12  1 0 1 +++ both( . x3x )  6  3 3  4 * * β3/2x . ♦ 3  3 0  * 4 * sefa( β3/2x3x )  3  0 3  * * 4 starting figure: x3/2x3x
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